armando-migliaccio 08e3abd414 Handle exceptions on create_dhcp_port
If a network/subnet is deleted while creating the dhcp
port, the agent will detect a conflict on state of the
network and deal with it accordingly.

A concurrent delete may manifest itself via a number
of exceptions, IPAddressGenerationFailure amongst others,
hence the refactoring of the error handling logic into its
own utility method.

Partial-bug: #1253344
Related-bug: #1243726

Change-Id: I442beb5f82f3db8786eea53926903ef0ba0efbf1
2013-12-04 00:19:53 -08:00
..
2013-07-06 15:02:43 -04:00
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